Shenzhen E-Think technology co., Ltd is a high-tech company specialized in R&D and production of mobile power bank and e-cigarette.by providing our profesional and whole-hearted service to customers, we gain good reputation in the industry.our goal is to make our own brand, so we strictly with the quality of the products.we have many successfully story by offering customers OEM and ODM service.we look forward to offer the best products and best service to serve you at the time you need us.